Airplane



FIG. 1 is a front elevation view of an airplane showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a right side elevation view thereof (the left side elevation view being symmetrically the same);

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom view thereof. 

The ornamental design for, an airplane, as shown and described. 